World number one Jordan Spieth cut Matthew Jones' lead in the Australian Open to three shots going into Sunday's final round in Sydney.

American Spieth, 22, shot a four-under-par 67 to move seven under for the tournament and into second place.

Overnight leader Jones, from Australia, carded a second successive 68 to move to 10 under overall.

Northern Ireland's Darren Clarke trails Jones by nine strokes after a one-under-par 67 left him tied for seventh.

The European Ryder Cup captain is joined on one under by Australian Adam Scott, who recovered from a 73 on Friday to shoot 68, including an eagle on the 18th. The 36-year-old former world number one is trying to avoid finishing winless for the first season in his professional career.

It was a disappointing day for England's Lee Westwood, however, as he carded his worst round of the tournament - a four-over 75 to leave him tied for 35th on four over.

While the day ended well for Spieth, he first endured a rollercoaster front nine that included four bogeys - three of them in the first four holes - and three birdies.

However, three birdies and an eagle - at the 17th - in his back nine kept this year's double major winner in contention.

"I made a couple of bad swings and a couple of bad decisions," said Spieth. "Not many pars.